Application of GPR in the hole survey of the subway project
GPR (Ground penetrating radar) is one kind of the detection technologies with rapid, non-destruction, uninterrupted detection and high-resolution. GPR can be applied to detect underground holes and loose soil layer and the other baneful anomalies, and therefore is widely applied to hole survey of the subway project in recent years. In this paper, on the base of briefly describing engineering geological background between F station and L station of a subway project in Beijing, arrangement method of GPR survey line was put forward in the construction area of shield method. The distribution range and its characteristic of the hole anomalies were confirmed by analyzing and spade exploring partial anomaly. The results showed that three obvious anomalies were detected in the area between F station and L station, and seriously loose soil layer was the cause of No.1 and No.3 anomalies, and hole was the cause of No.2 anomaly. Thereby the anomalies of loose soil layer and hole could be detected accurately by the GPR technology, and then basic data of underground holes could be obtained. On the base of analyzing these data, effective measures could be adopted to avoid the hidden danger, then the safety of subway construction and surrounding environment of the subway project could be ensured.
GPR (Ground penetrating radar) subway project hole survey anomaly identification
Chunguan Zhang Bingqiang Yuan Liguo Wang Mingyi Song
School of Petroleum Resources, Xian Shiyou University, Xian 710065,China School of Petroleum Resources, Xian Shiyou University, Xian 710065, China Geological Exploration Institute of Nonferrou Metal Geological Exploration Bureau of Guangdong Provi AVIC Institute of Geotechnical Engineering, Beijing 100098, China
国际会议
成都
英文
707-711
2010-06-14（万方平台首次上网日期，不代表论文的发表时间）